20 results for "chemistry"
Questions 20
What is the common name for 'Calcium Sulfate Hemihydrate'?
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Which gas is used for the artificial ripening of green fruits?
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Which gas is used in fire extinguishers to put out fires?
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The pH value of pure water is approximately:
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Which chemical compound is known as 'Dry Ice'?
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Which acid is present in ant stings?
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Which chemical element is represented by the symbol 'Fe'?
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The ratio of copper and zinc in a brass alloy is 13 : 7. How much zinc will be there in 100 kg of the alloy?
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Which acid is present in lemon?
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Which of the following is the hardest natural substance on Earth?
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Which of the following is used in pencils?
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Which gas is released when bleaching powder is added to water?
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What is the common name for 'Sodium Bicarbonate'?
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Which of the following acids is present in a 'Lemon'?
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What is the chemical symbol for 'Gold'?
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What is the main component of 'Natural Gas'?
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What is the PH value of pure water at 25°C?
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What is the process of conversion of solid directly into gas called?
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What is the PH of the human stomach acid?
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Which gas is known as 'Laughing Gas'?
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